Immergas VICTRIX PRO V2 - 5.18 Wiring diagram two hydraulic zones with system heating pump

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5.18 WIRING DIAGRAM TWO HYDRAULIC ZONES WITH SYSTEM HEATING PUMP
Key: A37 - Connection sheet (loads) A38 - Connection card (signals) B1-2 - System ow probe (NTC) (optional) B4 - External probe (NTC) (optional) H1 - “ERROR" warning light (230 Vac) (optional) H2 - “Burner on” indicator light (230 Vac) (optional) M10 - Zone circulator (optional) S20-1 - Zone 1 room thermostat (optional) S20-2 - Zone 2 room thermostat (optional) 1 - 230 Vac - 50 Hz 2 - External relay (optional) - Coil 230 Vac Max. 0.1 A 3 - Master appliance 4 - Slave appliance (last boiler) 5 - Simple cascade appliance communication BUS
(make connections as per specic diagram)
“HYDRAULIC SETTINGS” PARAMETER CONFIGURATION TABLE ('TECHNICIAN' MENU)
Parameter/menu name Setting
“Relay settings” submenu: - K70-A1 - K70-A2 - K70-A3 - K70-A4 - K70-A5 - K70-A6 - K70-A7 System pump conguration
- Relay not used - Relay not used - System pump - Relay not used - Relay not used - Burner on - Error - Zone 1 + Zone 2
- System sensor - Type of heating request - DHW request type - Parallel mode
- C.H. mode - Outdoor temperature curve and room thermostat - ermostat (In this case, the diagram does not provide for DHW, but default setting it as a thermostat avoids error 33) - Disabled
Note: the system pump is driven by both room thermostats.
Openerm: • If an Openerm thermostat is used, set the parameter
'Heating request type' as 'Room thermostat setpoint';
• Make sure that the Openerm thermostat is compatible
with the appliance.
Notes: See further tables and notes pertaining to this scheme in section 5.10, "Tables and notes common to simple cascade wiring diagrams".